Production of Sugar Feedstocks for Fermentation Processes from Selected Fast Growing Grasses

Kamila Przybysz, Edyta Małachowska, Danuta Martyniak, Piotr Boruszewski, Halina Kalinowska and Piotr Przybysz
Additional contact information
Kamila Przybysz: Natural Fibers Advanced Technologies, 42A Blekitna Street, 93-322 Lodz, Poland
Edyta Małachowska: Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, 159 Nowoursynowska Street, 02-776 Warsaw, Poland
Danuta Martyniak: Department of Grasses, Legumes and Energy Plants, Plant Breeding and Acclimatization Institute-National Research Institute, Radzikow, 05-870 Blonie, Poland
Piotr Boruszewski: Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, 159 Nowoursynowska Street, 02-776 Warsaw, Poland
Halina Kalinowska: Lodz University of Technology, Institute of Technical Biochemistry, 4/10 Stefanowskiego Street, 90-924 Lodz, Poland
Piotr Przybysz: Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, 159 Nowoursynowska Street, 02-776 Warsaw, Poland

Energies, 2019, vol. 12, issue 16, 1-12

Abstract: This study showed that kraft cellulosic pulps from Miscanthus giganetus JM Greef and Deuter ex Hodk. and Renvoize, sweet sorghum and 5 other fast growing grasses may be easily enzymatically converted to glucose-rich sugar feedstocks. The scientific goal of the paper was to assess and compare the potential yield of hydrolysis and verify whether these grasses may be a source of sugars for fermentation processes. Kraft pulping was used as a pretreatment method and hydrolysis of the pulps was conducted using a commercial multienzyme preparation containing cellulases and xylanases at initial substrate concentrations of 0.476, 3.88 and 7.46% w / v , and 3 different enzyme loadings. Results showed that tall wheatgrass, striped tuber oat grass, tall fescue and smooth bromegrass may be efficiently converted to sugar feedstocks for biotechnology application, but that the simple reducing sugars yield is lower than for wood, due to lower cellulose content.

Keywords: cellulosic pulps; enzymatic hydrolysis; kraft pulping; alternative fibrous raw materials (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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